[v9,23/27] MIPS: CI20: Reduce system timer to 3 MHz

Message ID 20181227181319.31095-24-paul@crapouillou.net
State Superseded
Headers show
Series
  • Ingenic TCU patchset v9
Related show

Commit Message

Paul Cercueil Dec. 27, 2018, 6:13 p.m.
The default clock (48 MHz) is too fast for the system timer.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
---

Notes:
     v5: New patch
    
     v6: Set also the rate for the clocksource channel's clock
    
     v7: No change

     v8: No change

     v9: Don't configure clock timer1, as the OS Timer is used as
         clocksource on this SoC

 arch/mips/boot/dts/ingenic/ci20.dts | 6 ++++++
 1 file changed, 6 insertions(+)

Patch

diff --git a/arch/mips/boot/dts/ingenic/ci20.dts b/arch/mips/boot/dts/ingenic/ci20.dts
index 50cff3cbcc6d..700cf28a52ec 100644
--- a/arch/mips/boot/dts/ingenic/ci20.dts
+++ b/arch/mips/boot/dts/ingenic/ci20.dts
@@ -238,3 +238,9 @@ 
 		bias-disable;
 	};
 };
+
+&tcu {
+	/* 3 MHz for the system timer */
+	assigned-clocks = <&tcu TCU_CLK_TIMER0>;
+	assigned-clock-rates = <3000000>;
+};